Western Zone Zone Boys 10 & under - 50 Y Breast
These rankings show the swimmers' placement within their Zone.They are based on the swimmer's personal best, their current age category, and team; and are calculated from all the meets results.
For each swimmer, you can find the swimmer's ranking, their best time, the corresponding time standard, as well as how much faster the swimmer needs to be to reach the next level. The last columns provide information about the event they achieved this personal best.
Swimmer Rankings
| Ranking | Name | Time | Age | Standard | to Next Standard | Team | Date | Meet | |
|---|---|---|---|---|---|---|---|---|---|
| 101 | Ashwin Tiwari | 40.33 | 9 | A Min | AA: 40.19 (+0.14s | 0.3%) | Olympic Cascade Aquatics | 03/19/2026 | 2026 NW Region Age Group Champs Approved | |
| 102 | Adrian Tu | 40.34 | 10 | A Min | AA: 40.19 (+0.15s | 0.4%) | Walnut Creek Aquabears | 03/07/2026 | SRVA Last Chance Meet B BB+ | |
| 103 | Benjamin Shen | 40.36 | 10 | A Min | AA: 40.19 (+0.17s | 0.4%) | Orinda Aquatics | 12/12/2025 | Winter SC Age Group Championships | |
| 104 | Ryan Chen | 40.40 | 10 | A Min | AA: 40.19 (+0.21s | 0.5%) | DeAnza Cupertino Aquatics | 03/20/2026 | SCY Spring Age Group Championships | |
| 105 | Gilly Luna | 40.40 | 10 | A Min | AA: 40.19 (+0.21s | 0.5%) | Paseo Aquatics Swim Team | 03/12/2026 | 2026 SCS Spring Age Group Champs @ RMDA Cop | |
| 106 | Oliver Panofsky | 40.54 | 9 | A Min | AA: 40.19 (+0.35s | 0.9%) | Slo Swim Club Seahawks | 12/19/2025 | 2025 SI Winter Age Group Championships | |
| 107 | Matthew Ko | 40.54 | 10 | A Min | AA: 40.19 (+0.35s | 0.9%) | Aspire Aquatics of Colorado | 02/27/2026 | 2026 CO CSI SC Age Group Championships | |
| 108 | Axton Santiago | 40.60 | 10 | A Min | AA: 40.19 (+0.41s | 1.0%) | Pearl City Aquatics | 02/26/2026 | 2026 HI Hawaiian Swimming SCY AGChamps | |
| 109 | Charles Kramer | 40.64 | 10 | A Min | AA: 40.19 (+0.45s | 1.1%) | Los Angeles Swim Club | 03/12/2026 | 2026 SCS Spring Age Group Champs @ RMDA Cop | |
| 110 | Samuel Evanovich | 40.65 | 10 | A Min | AA: 40.19 (+0.46s | 1.1%) | Academy Swim Club | 02/26/2026 | 2026 HI Hawaiian Swimming SCY AGChamps | |
| 111 | Lucas Jiang | 40.70 | 9 | A Min | AA: 40.19 (+0.51s | 1.3%) | Santa Clara Swim Club | 03/20/2026 | SCY Spring Age Group Championships | |
| 112 | Yuning Huang | 40.73 | 10 | A Min | AA: 40.19 (+0.54s | 1.3%) | Rose Bowl Aquatics | 03/12/2026 | 2026 SCS Spring Age Group Champs @ RMDA Cop | |
| 113 | Owen Newton | 40.73 | 10 | A Min | AA: 40.19 (+0.54s | 1.3%) | SwimNation Aquatics Programs | 12/12/2025 | 2025 CA GWSC Winter Age Group Invitational | |
| 114 | Ian Susanto | 40.76 | 9 | A Min | AA: 40.19 (+0.57s | 1.4%) | Legacy Aquatics | 02/21/2026 | 2026 Arena Short Course 10 U Championships | |
| 115 | Kamden Love | 40.77 | 10 | A Min | AA: 40.19 (+0.58s | 1.4%) | Stingray Swim Team | 02/27/2026 | 2026 PN February AGI, Div 1 Approved | |
| 116 | Jeremy Zhao | 40.84 | 9 | A Min | AA: 40.19 (+0.65s | 1.6%) | Quicksilver Swimming | 02/21/2026 | Pacific Swimming 10 U SCY Championship | |
| 117 | Reid Kelly | 40.88 | 10 | A Min | AA: 40.19 (+0.69s | 1.7%) | Front Range Barracudas | 02/13/2026 | 2026 CO NJ Groundhog Invite | |
| 118 | Arick Yuan | 40.91 | 10 | A Min | AA: 40.19 (+0.72s | 1.8%) | Santa Clara Swim Club | 02/28/2026 | Swim South Bay | |
| 119 | Luke Xu | 40.91 | 10 | A Min | AA: 40.19 (+0.72s | 1.8%) | Unattached | 02/28/2026 | VJO Rep The Bay C B A+ 2026 Copied | |
| 120 | Eliott Jackson | 40.92 | 10 | A Min | AA: 40.19 (+0.73s | 1.8%) | Team Eugene Aquatics | 03/14/2026 | 2026 TEAM Shootout | |
| 121 | Aaron Zhao | 40.92 | 10 | A Min | AA: 40.19 (+0.73s | 1.8%) | Brea Aquatics | 03/12/2026 | 2026 SCS Spring Age Group Champs @ RMDA Cop | |
| 122 | Kai Thomas | 40.98 | 10 | A Min | AA: 40.19 (+0.79s | 1.9%) | Renegade Aquatics | 03/06/2026 | 2026 SI 14U AGE GRP CHAMPIONSHIPS | |
| 123 | Conner Lo | 41.02 | 10 | A Min | AA: 40.19 (+0.83s | 2.0%) | DeAnza Cupertino Aquatics | 03/20/2026 | SCY Spring Age Group Championships | |
| 124 | Flynn Chen | 41.03 | 10 | A Min | AA: 40.19 (+0.84s | 2.0%) | DeAnza Cupertino Aquatics | 02/07/2026 | PASA CBA+ SCY Meet Feb 2026 | |
| 125 | Elijah Hutagalung | 41.08 | 10 | A Min | AA: 40.19 (+0.89s | 2.2%) | Aspire Aquatics of Colorado | 02/27/2026 | 2026 CO CSI SC Age Group Championships | |
| 126 | David Goldenberg | 41.08 | 10 | A Min | AA: 40.19 (+0.89s | 2.2%) | Bellevue Club Swim Team | 02/13/2026 | 2026 MVN Lunar AAPI Festival | |
| 127 | Johann Mancenido | 41.11 | 10 | A Min | AA: 40.19 (+0.92s | 2.2%) | Dart Swimming | 11/08/2025 | Folsom Classic 2025 | |
| 128 | Jaxon Despain | 41.11 | 9 | A Min | AA: 40.19 (+0.92s | 2.2%) | Denver Swim Academy | 02/27/2026 | 2026 CO CSI SC Age Group Championships | |
| 129 | Hongjie Xiao | 41.19 | 8 | A Min | AA: 40.19 (+1.00s | 2.4%) | Irvine Novaquatics | 03/12/2026 | 2026 SCS Spring Age Group Champs @ RMDA Cop | |
| 130 | Liam Reyes | 41.24 | 10 | A Min | AA: 40.19 (+1.05s | 2.5%) | Reno Aquatic Club | 03/14/2026 | 2026 NNA AGO | |
| 131 | Landon Wang | 41.24 | 10 | A Min | AA: 40.19 (+1.05s | 2.5%) | Seattle Metropolitan Aquatic C | 11/22/2025 | 2025 PN Nov AGI, Division 2 (SMAC) | |
| 132 | Jackson Lee | 41.24 | 10 | A Min | AA: 40.19 (+1.05s | 2.5%) | Burlingame Aquatics | 10/25/2025 | TYR BAC SPOOKY FALL CLASSIC | |
| 133 | Matvey Fadeev | 41.25 | 10 | A Min | AA: 40.19 (+1.06s | 2.6%) | Issaquah Swim Team | 11/15/2025 | 2025 PN IST November Invitational | |
| 134 | David Zhang | 41.28 | 10 | A Min | AA: 40.19 (+1.09s | 2.6%) | Pacific Dragons Swim Team | 03/19/2026 | 2026 Northwest Region AG Champs Approved | |
| 135 | Jake Zobec | 41.29 | 10 | A Min | AA: 40.19 (+1.10s | 2.7%) | Denver Triton Swim Team | 02/01/2026 | 2026 CO FORM February Freeze | |
| 136 | Bennett Arguello | 41.29 | 9 | A Min | AA: 40.19 (+1.10s | 2.7%) | Greenwood Tiger Sharks | 02/27/2026 | 2026 CO CSI SC Age Group Championships | |
| 137 | Thomas Halford | 41.31 | 10 | A Min | AA: 40.19 (+1.12s | 2.7%) | Pikes Peak Athletics | 02/27/2026 | 2026 CO CSI SC Age Group Championships | |
| 138 | Adrian Deng | 41.32 | 10 | A Min | AA: 40.19 (+1.13s | 2.7%) | Mission Viejo Nadadores | 02/13/2026 | 2026 MVN Lunar AAPI Festival | |
| 139 | Haoran Cong | 41.34 | 10 | A Min | AA: 40.19 (+1.15s | 2.8%) | Bellevue Club Swim Team | 03/19/2026 | 2026 Northwest Region AG Champs Approved | |
| 140 | Calvin Larkin | 41.38 | 9 | A Min | AA: 40.19 (+1.19s | 2.9%) | Bend Swim Club | 02/21/2026 | 2026 Arena Short Course 10 U Championships | |
| 141 | Titus Robinson | 41.41 | 10 | A Min | AA: 40.19 (+1.22s | 2.9%) | Swim Torrance | 03/12/2026 | 2026 SCS Spring Age Group Champs @ RMDA Cop | |
| 142 | Hunter Atkins | 41.41 | 10 | A Min | AA: 40.19 (+1.22s | 2.9%) | Palo Alto Stanford Aquatics | 03/20/2026 | SCY Spring Age Group Championships | |
| 143 | Anthony Ma | 41.43 | 10 | A Min | AA: 40.19 (+1.24s | 3.0%) | Cottonwood Heights Aquatics | 12/13/2025 | 2025 UTAH Winter Classic | |
| 144 | Eric Zeng | 41.46 | 9 | A Min | AA: 40.19 (+1.27s | 3.1%) | Canyons Aquatic Club | 12/12/2025 | 2025 CA GWSC Winter Age Group Invitational | |
| 145 | Sinan Ozgur | 41.49 | 10 | A Min | AA: 40.19 (+1.30s | 3.1%) | Pleasanton Seahawks | 02/20/2026 | Pacific Swim SCY C B BB+ Meet Hosted By TERA | |
| 146 | Julian Phillips | 41.51 | 10 | A Min | AA: 40.19 (+1.32s | 3.2%) | Quicksilver Swimming | 03/20/2026 | SCY Spring Age Group Championships | |
| 147 | Devin Song | 41.53 | 9 | A Min | AA: 40.19 (+1.34s | 3.2%) | Rose Bowl Aquatics | 03/12/2026 | 2026 SCS Spring Age Group Champs @ RMDA Cop | |
| 148 | Oliver Pearce | 41.55 | 10 | A Min | AA: 40.19 (+1.36s | 3.3%) | Aces Swim Club | 02/27/2026 | 2026 CO CSI SC Age Group Championships | |
| 149 | Ludwik Pawelski | 41.56 | 9 | A Min | AA: 40.19 (+1.37s | 3.3%) | Sparks Piranhas Swim Team | 02/06/2026 | 2026 Valentines Day Age Group Open | |
| 150 | Yihong Xiang | 41.57 | 10 | A Min | AA: 40.19 (+1.38s | 3.3%) | Tualatin Hills Swim Club | 05/16/2026 | 2026 John DeRoest Sextathlon Swim Meet | |
Disclaimer: This Website is not affiliated with USA Swimming or any Local Swim Committee. The rankings and times displayed on this website are unofficial and should not be viewed as such. We update our information regularly, but we cannot guarantee that the data is accurate, timely, or complete. The only purpose of this website is entertainment. None of the information here should be used for university admission applications.